Thule 591 roof carrier whistle...

How come I've never heard of this complaint until today when I entered the title of this thread into google after popping down the shops for the first time since installing my shiny new rack?? - sounds like a frigging singing Mogwai on the roof!?

Ran 591's on the roof of the car for 7 years, just left them on, never heard anything from them. Even in extreme winds nothing, only issues i had and tbh wasnt really an issue was when the car was standing and it rained used to get a river of water down the windscreen when i moved the car, other than that nothing they did the job perfectly.

Well you can't expect to have stuff on the roof and for not to hear anything. Wing bars on their own are pretty quiet, but the bike racks are not aerodynamically shaped so you're going to get some noise from them, whether it's a whistle or a roar. Just depends if its articulately noticeable in the car cabin. I don't notice it in my SMax with wing bars and three 591's unless I listen specifically for it.

Thule aero and a 591 on 3 series saloon and never had the whistling you describe and tbh don't notice any difference in fuel economy whether the 591 is mounted or not. As above, make sure you set the bars up properly with no gaps on the underside.

Actually laughed for about 5 minutes at that Best description i have ever heard for rack whistle. My roof rack on my Connect whistles like buggery, i'm gonna be laughing my ass off on the motorway when i think of that.